<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8"/>
    <title>Title</title>
</head>
<body>
<form action="/testUpload" enctype="multipart/form-data"
      method="post">
    上传用户：<input type="text" name="username"/><br/>
    上传文件：<input type="file" name="file2"/><br/>
    <input type="submit" value="提交"/>
</form>
</body>
</html>